Storage battery



Patented Sept. 13,

.U E P T mm HENRY w. LOBMOR, or onnvnnmn BEIGE-rs; onIo, assrenon r0WILLARD sroanen BATTERY comrm, or CLEVELAND, euro, nconroaanon or wEsrvmemm fsroaaen BATTERY which the rover is attached to the storage bat:

- 'tery case or container.

\ vide an efficient vacuum sealing .means he- 8 cover being introducedinto 85 hard rubber or other suitable material cover Q in the openingin" the container 10 ducmg a sealing compound such. as plastic Animportant feature of. the present inven-' tion is to provide a sealingmeans between the cover and the storage battery container which issimple in construction, eflicient in operation and inexpensive tomanufacture;

- A further object of the invention is to protween the cover and thestorage battery container to thereby provide an air,

tight seal. With the objects above indicated and other objectshereinafterexplained in view, the invention consists'in the constructionand combination of elements hereinafter described and claimed.

a lathe drawing, Fig. lis a fragm manner of attaching a cover toastorage battery case embodying the present invention. Fig. 2 is a topplan view'of the same.

Fig. 3 is a top plan view of the sealing ring. pe

Fig. 4 is a fragmentary sectional view showmgthe-position of the coverand ring before its insertion into the container. 1

Fig. 5 is a fragmentary detail showing the container.

Referring to the drawing, 10 represents a storage battery container ofrubber or other suitable material tion, which is provided preferablywith a -11 adapted to close the opening in the upper portion of thecontainer 10.

The cover may be of any desired design and is usually provlded'withopenings 12 through which the terminal posts of the storage batteryplates extend and an opening 13 a apted to receive the usual vent plug.V

It is customary to secure the cove 11 with-- by intro cement orasphaltum base between the adabent edges of the cover and the innerwalls of the open ng respec rely but this usually produces a messyappearance and is easily -marked or disfigured when slightly heated.

- may acid and gas entary View showing the the and of standardconstrue-- ring 16 has been secure ap lication filed October 10, 1928.Serial no. $11,485.

It is one of the features of the invention,

therefore, compound and to securethecover liwithln the opening in thecontainer 10 by the introduction of a soft rubbersealing ring disposedtherebetween and adapted to retain the cover 11 in proper position bytheaction of vacuum and friction. i

to eliminate the use'of this sealing I This may be carried out veryefliciently in v the following manner, although it is'to be understoodthat the invention is not to be limited to the precise construction andarrangement herein disclosed.-

The cover 11 is provided with a laterally 1 extending flange 14, theoutside dimensions of which are slightly less than the'inside dimensionsof the opening in the container 10.

.The cover ll'is further provided with a dending annular portionf15adjacent the flange 14 and provides a space adapted to receive arectangularly shaped soft rubber ring 16. This rubber ring is providedwith a transverse opening 17 adapted to fit over the. r end ofthedependrng flange 15 withthe upr surface engagln .the under surface ofthe flange 14, as clearly shown in Figs 1, 4 and 5. j a;

' Thisisoft rubber ring may be held in position upon the, cover 11 byrubber cement or any other suitable adhesive compound so as to preventdisengagement between the rubber ring and the cover; w

, The rubber ring 16 is provided with a grooye18 which extends entirelyaround the four sidesof thenring 16 and which extends inwardly from theouter periphery thereof to provide an upper lip 19 and a lower 11p 20.

The outside dimensions ofthe rubber ring 16 wardly, the lower lip 20ofthe rub necessary to exert some p In placing the cover 1.

her ring within the opening in the top of thecontainer 10, t is 16engages the inner edge of the container adjacent the opening and ismoved upwardly toward the upper lip 19 due to frictional engagementbetween the lip 20 and the inner surface of the container 10. Thismaterially reduces the area of the groove 18 and, at the same time, aportion of the air which was within the groove 1.8 is forced out oir thegroove. Further depression of the cover causes the upper lip '19 to hemoved into engagement with the inner wall of the container adjacent theopening and as the sides the container push the lips inwardly, the areawithin the groove 18 is distended increased, thus causing a partialvacuum within the groove 18 hetween theruhher ring 16 1 and the innerwalls or the container 16. The

- cover 11, theretore, is securely held within tional engagement betweenthe ring 16 and c the inner walls of the container 10.

This sealing means has the further advantage of taking "up any swellingor shrinhage, due to temperature changes within hattery or any externaltemperature change which might cause the battery case or cover toshrink, due to the ruhher ring being under compression.

While I have described the preterredemhodiment of the invention, it isto he understood that I am not to he limited thereto as changes andmodifications may he resorted to without departingfrom the spirit of theinvention as defined in the appended claims.

Havingithus described my invention, what A I claim is:

i, In a storage battery, the comhination oi a container, a cover forsaid container, a ruleher ring carried by said coveraand a groove insaid ring whereby when said cover is insorted into said container, thering is maintained in engagement with the container through suction. L

2. The method of securing a cover, pro vided with a sealing ring, to acontmner which comprises creating a suction orvaca container, a coverfor said container, said cover having. a laterally extending flange toprovide an'ahutmentnpon the under side thereof, and a resilient memberexte di around said cover in engagement with said 7 signature 7 HENRY W.LURE wilt.

reg

are I

